Polymorphic Factory From Input

A factory method can return different subclasses through the same base type, chosen at runtime. Notification is abstract with abstract string Format(string); EmailNotification and SmsNotification are complete. In NotificationFactory, finish Create(string type) so it returns an EmailNotification when type is email, and an SmsNotification otherwise. The tester reads the type and message from input. Do NOT write a Main method.

For input email then Hello the program prints:
Email: Hello
For input sms then Hi it prints:
SMS: Hi

Expected Output:

Email: Hello

Topics:

Polymorphism

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